Where in NY is she? I recently shipped from Menands, NY to Lancaster, PA via FedEx Priority Overnite for $35. UPS, I believe, is a bit cheaper as a rule, but I currently breed only snakes (UPS doesn't take them) and FedEx is only 3 miles from my house
. Besides, I have had UPS refuse to accept lizards in the past...it all depends on who is working at the time.
I wouldn't do ground, even if it does usually get there the next day. Ground shipments leave earlier, so it is easier to miss the deadline (in which case the box sits there til the next day). Also, it is not GUARANTEED to be there the next day, which is why people pay for overnite service.
Just curious, she is giving them to you for free AND paying shipping? That isn't very fair, since she will also have to purchase a box, styro for insulation, and heat packs (unless she has all of the above already).
Where in NY is she? If she is close enough, I would handle the shipping for cost.